Fig. 13From: Highly selective cleavage C–O ether bond of lignin model compounds over Ni/CaO–H-ZSM-5 in ethanolThe product distributions for the conversion of a phenol and b hydroquinone over Ni/CaO–H-ZSM-5(60) as a function of time. Reaction conditions: phenol (2.5 mmol) or hydroquinone (2.5 mmol), Ni/CaO-H-ZSM-5(60) (0.0775 g), ethanol (30 mL), 140 °C, 1 MPa H2, stirring at 700 rpmBack to article page